A moving point plot in MATLAB figure with animation.

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Aakash
Aakash 2013-7-24
评论： Bodie 2024-4-24，13:10
My program calculates position of a point on Z plane as (X,Y). I need to plot (X,Y) in Z-plane with a moving point showing location of point over the time in a single MATLAB figure. Please help.

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采纳的回答

Iman Ansari
Iman Ansari 2013-7-24
n = 50;
XY = 10 * rand(2,n) - 5;
for i=1:n
plot(XY(1,i),XY(2,i),'or','MarkerSize',5,'MarkerFaceColor','r')
axis([-5 5 -5 5])
pause(.1)
end
  2 个评论
Usama Faisal
Usama Faisal 2020-12-20
i=1;
for n=1:length(y) % use for loop to animate the line
if y(n)>sur(n)
plot(x(n),y(n),'o','MarkerFaceColor','b')
i=i+1;
grid on
drawnow
else
end
end

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更多回答（3 个）

Image Analyst
Image Analyst 2013-7-24
Use the comet() function. It does exactly that.
  4 个评论
显示 2更早的评论
reema shrestha
reema shrestha 2017-10-7
编辑：reema shrestha 2017-10-7
I exactly want to do the same thing in projectile motion simulation. Instead of using comet to trace the path as well,I want to create a ball and make it follow the trajectory without drawing the trajectory,just the ball moving. Can you suggest me any?
Image Analyst
Image Analyst 2017-10-7
You can perhaps just use plot() with a big dot marker over and over:
for k = 1 : whatever
x = ......
y = ......
plot(x, y, 'r.', 'MarkerSize', 30);
end

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Mohamadreza Khashei
for k = 1 : whatever x = ...... y = ...... plot(x, y, 'r.', 'MarkerSize', 30); end
Muhammad Hadyan Utoro
移动：Image Analyst 2022-9-29
x = [0:0.01:2*pi];
for i = 1:length(x)
y = sin(x);
figure(1)
plot(x,y,'-o','MarkerIndices',1+i)
hold off
pause(0.005)
end

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